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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4732) Reduce or eliminate the expensive Schema equals() check for AvroSerde
Date Fri, 20 Sep 2013 07:27:52 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13772844#comment-13772844
] 

Hive QA commented on HIVE-4732:
-------------------------------



{color:green}Overall{color}: +1 all checks pass

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12604184/HIVE-4732.7.patch

{color:green}SUCCESS:{color} +1 3128 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/836/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/836/console

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.
                
> Reduce or eliminate the expensive Schema equals() check for AvroSerde
> ---------------------------------------------------------------------
>
>                 Key: HIVE-4732
>                 URL: https://issues.apache.org/jira/browse/HIVE-4732
>             Project: Hive
>          Issue Type: Improvement
>          Components: Serializers/Deserializers
>            Reporter: Mark Wagner
>            Assignee: Mohammad Kamrul Islam
>         Attachments: HIVE-4732.1.patch, HIVE-4732.4.patch, HIVE-4732.5.patch, HIVE-4732.6.patch,
HIVE-4732.7.patch, HIVE-4732.v1.patch, HIVE-4732.v4.patch
>
>
> The AvroSerde spends a significant amount of time checking schema equality. Changing
to compare hashcodes (which can be computed once then reused) will improve performance.

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